1 Features

• RC configurable from 1μs to 860ms

• For pulses longer than 860ms, use TPUL2T323

• 1% typical, 10% maximum pulse width variation

• Wide operating range of 1.5V to 5.5V

• Inputs accept voltages up to 5.5V

• Schmitt-trigger architecture on all inputs

2 Applications

• Demodulate a digital Amplitude Shift Keying (ASK)

signal

• Reset a system for a fixed period of time

• Generate a positive fixed-width digital pulse

• Detect a digital signal rising edge

• Detect a digital signal falling edge

• Debounce a switch

3 Description

The TPUL2G123 device contains two independent

RC configurable retriggerable monostable

multivibrators designed for 1.5V to 5.5V operation.

The output pulse duration is configured by selecting

external resistance and capacitance values with an

approximate output pulse width of two ≅ R × C.

This device features three trigger inputs, allowing for

rising edge (T) or falling edge (T) triggers and a

clear input (CLR) that can be used asynchronously to

stop an active output pulse. All trigger inputs include

Schmitt-trigger architecture to allow for slow input

transition rates and improve noise immunity.